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Blood being carried towards the heart is always oxygen-depleted.
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- A partial pressure gradient of oxygen exists between ________. a. air and lungs b. lungs and metabolically active tissues c. air at sea level and air at high altitudes d. all of the aboveA pulmonary _______ carries oxygen-poor blood. a. artery b. veinsIf a respiratory pigment such as hemoglobin or hemocyanin is not present in blood the blood would not carry carbon dioxide the blood would have decreased oxygen carrying capacity the blood would not carry oxygen
- Which of the following is the concentration of hemoglobin-bound oxygen in the blood when the heme is fully saturated? 8500 uM 8630 uM 2200 uM 8800 uMThe hemoglobin molecule Is made inside of the liver Carries around 15 percent of the oxygen in the blood Turns dull brownish red when oxygen is bound to it. Consists of 2 globin chains and 2 iron groups Is contained inside of red blood cells.Ventilatory threshold is the point at which an individual's ventilation becomes coupled to oxygen need an individual begins to produce lactate an individual's breathing becomes coupled to their need to buffer acidosis an individual reaches their VO2 max
- Which of these would BEST indicate a patient has a problem because of inadequate breathing? A rapid heart rate A low blood pressure A poor pulse oximetry reading A slow respiratory rate or very shallow breathingA sigmoidal shape of oxygen-HB binding curve signifies that HB is a poor transporter of oxygen OHB is an efficient transporter of oxygen HB is an efficient oxygen storage protein HB binds to oxygen tightly in musclesPlace a single word into each sentence to make it correct saturation The relationship between hemoglobin and Po2 is shown by an oxyhemoglobin dissociation curve. rises lowers At low Po2, the curve slowly load When the curve rises there is a rapid increase in oxygen loading. deficiency When the first heme group binds a molecule of oxygen, changes conformation to accept a second carbon dioxide Oxygen. Eventually at high Po2 levels, the hemoglobin approaches 100 % saturation and can not hemoglobin more oxygen.Iron is essential because it is the part of hemoglobin that O makes it strong makes it flexible carries oxygen O allows it to change colorWhich of the following statements about oxygen transport is TRUE. Increases in temperature and decreases in pH cause myoglobin to release oxygen to improve delivery to the hemoglobin in muscles. A molecule of myoglobin has higher oxygen binding capacity than a molecule of hemoglobin. Myoglobin has a higher oxygen affinity than does hemoglobin. Fetal hemoglobin has a lower affinity for oxygen than maternal hemoglobin, which makes it better suited to extract oxygen from the maternal circulation.After your exercise routine at the gym, you sit with friends drinking a glass of water to cool off. Select a single word from list and place into each blank to make it correct. Not all terms will be used. 40 mmHg right increases As you cool off, metabolism at the skeletal muscles decreases, and the oxygen saturation curve shifts affinity for oxygen because hemoglobin's . Under these conditions, hemoglobin 20% is likely to release oxygen. decreases At the same time, the partial pressure of oxygen at the systemic capillaries changes from about to less Carbon dioxide released from the skeletal muscle cells during vigorous exercise can make the blood slightly more acidic. This results in hemoglobin having a affinity. left oxygen saturation or oxygen higher 40% 20 mmHg lower moreSEE MORE QUESTIONS